| Desc. | Ver. | Release Date | File Name |
| English / German / Japanese / Simplified Chinese / Traditional Chinese |
| Firmware Upgrade | v2.1.203 | 2025-04-25 |
cs1734b-v2.1.203-for-win.zip |
| Firmware Upgrade | v2.1.201 | 2023-07-25 |
cs1734b-v2.1.201-for-win.zip |
| Firmware Upgrade | v2.0.199 | 2019-11-28 |
cs1734b_v2.0.199_for_win.zip |
| Firmware Upgrade | v2.0.198 | 2017-12-08 |
cs1734b_v2.0.198_for_win.zip |
| Firmware Upgrade | v2.0.197 | 2016-10-06 |
cs1734b_v2.0.197_for_win.zip |
| Firmware Upgrade | v2.0.196 | 2016-03-28 |
cs1734b_v2.0.196_for_win.zip |
| Firmware Upgrade | v2.0.195 | 2013-11-27 |
cs1734b_v2.0.195_for_win.zip |
| English / Japanese / German |
| Firmware Upgrade | v1.5.145 | 2012-05-21 |
cs1734b_v1.5.145_EN_JP_DE_for_win.zip |
| Firmware Upgrade | v1.5.143 | 2011-01-18 |
cs1734b_v1.5.143_EN_JP_DE_for_windows.zip |
| Firmware Upgrade | v1.4.131 | 2010-03-29 |
cs1734b_v1.4.131_EN_JP_DE_for_windows.zip |
| Firmware Upgrade | v1.3.121 | 2009-03-16 |
cs1734b_v1.3.121_EN_JP_DE_for_windows.zip |
| Firmware Upgrade | v1.2.112 | 2009-01-20 |
cs1734b_v1.2.112_EN_JP_DE_for_windows.zip |
| English / Simplified Chinese |
| Firmware Upgrade | v1.5.145 | 2012-05-21 |
cs1734b_v1.5.145_EN_SC_for_win.zip |
| Firmware Upgrade | v1.5.143 | 2011-01-18 |
cs1734b_v1.5.143_EN_SC_for_windows.zip |
| Firmware Upgrade | v1.4.131 | 2010-03-29 |
cs1734b_v1.4.131_EN_SC_for_windows.zip |
| Firmware Upgrade | v1.3.121 | 2009-03-16 |
cs1734b_v1.3.121_EN_SC_for_windows.zip |
| Firmware Upgrade | v1.2.112 | 2009-01-20 |
cs1734b_v1.2.112_EN_SC_for_windows.zip |
| English / Traditional Chinese |
| Firmware Upgrade | v1.5.145 | 2012-05-21 |
cs1734b_v1.5.145_EN_TC_for_win.zip |
| Firmware Upgrade | v1.5.143 | 2011-01-18 |
cs1734b_v1.5.143_EN_TC_for_windows.zip |
| Firmware Upgrade | v1.4.131 | 2010-03-29 |
cs1734b_v1.4.131_EN_TC_for_windows.zip |
| Firmware Upgrade | v1.3.121 | 2009-03-16 |
cs1734b_v1.3.121_EN_TC_for_windows.zip |
| Firmware Upgrade | v1.2.112 | 2009-01-20 |
cs1734b_v1.2.112_EN_TC_for_windows.zip |
| Others |
| Firmware Upgrade | v1.1.103 | 2008-02-29 |
cs1734b_v1.1.103.zip |
